using HighWayIot.Rfid.Entity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HighWayIot.Rfid
{
    public class RfidDataAnalyse
    {
        /// <summary>
        /// 02H时间段盘点发送
        /// </summary>
        /// <param name="millisecond">盘点时间毫秒数</param>
        /// <returns></returns>
        public byte[] Send02H(ushort millisecond)
        {
            byte[] bytes = BitConverter.GetBytes(millisecond);

            BaseSendDataEntity entity = new BaseSendDataEntity()
            {
                Code = 0x02,
                Data = bytes
            };

            return BaseRFIDDataAnalyse.BaseSendDataAnalyse(entity);
        }

        /// <summary>
        /// 接受02H盘点数据 (默认EPC 12位)
        /// </summary>
        /// <param name="bytes"></param>
        /// <returns></returns>
        public Receive02HEntity Receive02H(byte[] bytes)
        {
            BaseReciveDataEntity recive = BaseRFIDDataAnalyse.BaseReceiveAnalyse(bytes);
            byte[] DataBytes = recive.Data;

            Receive02HEntity entity = new Receive02HEntity();

            //取读到多少个标签
            int index = 0;
            entity.TagCount = DataBytes[index];
            index++;

            //取每一个读到的标签
            entity.Data = new List<Single02HReceive>();
            for (int i = 0; i < entity.TagCount; i++)
            {
                Single02HReceive EPCData = new Single02HReceive();

                //取单个标签读取的次数
                EPCData.Count = DataBytes[index];
                index++;

                //取信号强度
                EPCData.RSSI = DataBytes[index];
                index++;

                //取天线端口
                EPCData.Ant = DataBytes[index];
                index++;

                //取EPC区域
                Array.Copy(DataBytes, index, EPCData.PC, 0, 2);
                index += 2;

                //取读到标签的EPC
                Array.Copy(DataBytes, index, EPCData.EPC, 0, 12);
                index += 12;

                entity.Data.Add(EPCData);
            }

            return entity;
        }
    }
}